![subject](/tpl/images/cats/User.png)
Engineering, 11.09.2019 01:10 sleepyflower10
Ariver discharges 4 m3/s into a lake with a volume of 4,000,000 m3. the concentration of arsenic in the river is 1 ppb. an industry discharges 0.5 m3/s with an arsenic concentration of 20 ppb into the lake. the arsenic adheres to clay in the bottom of the lake creating an effective water concentration decay coefficient of 0.1 per day. what is the arsenic concentration leaving the lake?
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Engineering
![question](/tpl/images/cats/User.png)
Engineering, 03.07.2019 15:10
Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?
Answers: 3
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
Machinery that is a key part of the process and without which the plant or process cannot function is classifed as: (clo4) a)-critical machinery b)-essential machinery c)-general purpose machinery d)-none of the specified options.
Answers: 1
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information
Answers: 3
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:20
Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero
Answers: 2
You know the right answer?
Ariver discharges 4 m3/s into a lake with a volume of 4,000,000 m3. the concentration of arsenic in...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2019 14:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
Physics, 15.12.2019 14:31
![question](/tpl/images/cats/fr.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 15.12.2019 14:31
![question](/tpl/images/cats/mat.png)
Mathematics, 15.12.2019 14:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 15.12.2019 14:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 15.12.2019 14:31
![question](/tpl/images/cats/biologiya.png)
Biology, 15.12.2019 14:31
![question](/tpl/images/cats/en.png)
English, 15.12.2019 14:31
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 15.12.2019 14:31
![question](/tpl/images/cats/en.png)